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12120193 = 59205427
BaseRepresentation
bin101110001111…
…000010000001
3211210202210001
4232033002001
511100321233
61111440001
7205006561
oct56170201
924722701
1012120193
116929098
124086001
132684917
141876da1
1510e627d
hexb8f081

12120193 has 4 divisors (see below), whose sum is σ = 12325680. Its totient is φ = 11914708.

The previous prime is 12120181. The next prime is 12120223. The reversal of 12120193 is 39102121.

12120193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12120193 - 217 = 11989121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120193.

It is not an unprimeable number, because it can be changed into a prime (12120293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102655 + ... + 102772.

It is an arithmetic number, because the mean of its divisors is an integer number (3081420).

Almost surely, 212120193 is an apocalyptic number.

It is an amenable number.

12120193 is a deficient number, since it is larger than the sum of its proper divisors (205487).

12120193 is an equidigital number, since it uses as much as digits as its factorization.

12120193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205486.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12120193 is about 3481.4067558962. The cubic root of 12120193 is about 229.7046808349.

The spelling of 12120193 in words is "twelve million, one hundred twenty thousand, one hundred ninety-three".

Divisors: 1 59 205427 12120193